Wood Frisian (West Frisian: Wâldfrysk) is a dialect of the West Frisian language spoken in the eastern part of the Dutch province of Friesland, which is called Wâlden (English: "woods"). The dialect is also spoken in parts of Groningen, the province to the east of Friesland.
The largest difference between Wood Frisian and the northwestern Clay Frisian dialect are the words my ("me"), dy ("you"), hy ("he"), sy ("she" or "they"), wy ("we"), and by ("by"), which are pronounced in the Wood Frisian as a mi, di, hi, si, wi, and bi and in Clay Frisian as mij, dij, hij, sij, wij, and bij. Other differences are in the pronunciation of the diphthongs ei, ai, and aai which are pronounced ij, ai, and aai in Wood Frisian, but ôi, òi, and ôi in Clay Frisian. Thus, in Wood Frisian, there is no difference between ei and ij, whereas in Clay Frisian, there is no difference between ei and aai.
Other phonological differences include:
Some lexical differences between Wood Frisian and Clay Frisian include:
In the town of the de Westereen, Zwagerbosch and Twijzelerheide people speak a different kind of Wood Frisian: Westereendersk dialect.